1// Copyright 2014 PDFium Authors. All rights reserved. 2// Use of this source code is governed by a BSD-style license that can be 3// found in the LICENSE file. 4 5// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com 6// Original code is licensed as follows: 7/* 8 * Copyright 2007 ZXing authors 9 * 10 * Licensed under the Apache License, Version 2.0 (the "License"); 11 * you may not use this file except in compliance with the License. 12 * You may obtain a copy of the License at 13 * 14 * http://www.apache.org/licenses/LICENSE-2.0 15 * 16 * Unless required by applicable law or agreed to in writing, software 17 * distributed under the License is distributed on an "AS IS" BASIS, 18 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 19 * See the License for the specific language governing permissions and 20 * limitations under the License. 21 */ 22 23#include "xfa/fxbarcode/common/BC_CommonBitArray.h" 24#include "xfa/fxbarcode/common/BC_CommonBitMatrix.h" 25#include "xfa/fxbarcode/utils.h" 26 27CBC_CommonBitMatrix::CBC_CommonBitMatrix() { 28 m_width = 0; 29 m_height = 0; 30 m_rowSize = 0; 31 m_bits = nullptr; 32} 33void CBC_CommonBitMatrix::Init(int32_t dimension) { 34 m_width = dimension; 35 m_height = dimension; 36 int32_t rowSize = (m_height + 31) >> 5; 37 m_rowSize = rowSize; 38 m_bits = FX_Alloc2D(int32_t, m_rowSize, m_height); 39 FXSYS_memset(m_bits, 0, m_rowSize * m_height * sizeof(int32_t)); 40} 41void CBC_CommonBitMatrix::Init(int32_t width, int32_t height) { 42 m_width = width; 43 m_height = height; 44 int32_t rowSize = (width + 31) >> 5; 45 m_rowSize = rowSize; 46 m_bits = FX_Alloc2D(int32_t, m_rowSize, m_height); 47 FXSYS_memset(m_bits, 0, m_rowSize * m_height * sizeof(int32_t)); 48} 49CBC_CommonBitMatrix::~CBC_CommonBitMatrix() { 50 FX_Free(m_bits); 51} 52bool CBC_CommonBitMatrix::Get(int32_t x, int32_t y) { 53 int32_t offset = y * m_rowSize + (x >> 5); 54 if (offset >= m_rowSize * m_height || offset < 0) { 55 return false; 56 } 57 return ((((uint32_t)m_bits[offset]) >> (x & 0x1f)) & 1) != 0; 58} 59int32_t* CBC_CommonBitMatrix::GetBits() { 60 return m_bits; 61} 62void CBC_CommonBitMatrix::Set(int32_t x, int32_t y) { 63 int32_t offset = y * m_rowSize + (x >> 5); 64 if (offset >= m_rowSize * m_height || offset < 0) { 65 return; 66 } 67 m_bits[offset] |= 1 << (x & 0x1f); 68} 69void CBC_CommonBitMatrix::Flip(int32_t x, int32_t y) { 70 int32_t offset = y * m_rowSize + (x >> 5); 71 m_bits[offset] ^= 1 << (x & 0x1f); 72} 73void CBC_CommonBitMatrix::Clear() { 74 FXSYS_memset(m_bits, 0, m_rowSize * m_height * sizeof(int32_t)); 75} 76void CBC_CommonBitMatrix::SetRegion(int32_t left, 77 int32_t top, 78 int32_t width, 79 int32_t height, 80 int32_t& e) { 81 if (top < 0 || left < 0) { 82 e = BCExceptionLeftAndTopMustBeNonnegative; 83 return; 84 } 85 if (height < 1 || width < 1) { 86 e = BCExceptionHeightAndWidthMustBeAtLeast1; 87 return; 88 } 89 int32_t right = left + width; 90 int32_t bottom = top + height; 91 if (m_height < bottom || m_width < right) { 92 e = BCExceptionRegionMustFitInsideMatrix; 93 return; 94 } 95 int32_t y; 96 for (y = top; y < bottom; y++) { 97 int32_t offset = y * m_rowSize; 98 int32_t x; 99 for (x = left; x < right; x++) { 100 m_bits[offset + (x >> 5)] |= 1 << (x & 0x1f); 101 } 102 } 103} 104CBC_CommonBitArray* CBC_CommonBitMatrix::GetRow(int32_t y, 105 CBC_CommonBitArray* row) { 106 CBC_CommonBitArray* rowArray = nullptr; 107 if (!row || row->GetSize() < m_width) { 108 rowArray = new CBC_CommonBitArray(m_width); 109 } else { 110 rowArray = new CBC_CommonBitArray(row); 111 } 112 int32_t offset = y * m_rowSize; 113 int32_t x; 114 for (x = 0; x < m_rowSize; x++) { 115 rowArray->SetBulk(x << 5, m_bits[offset + x]); 116 } 117 return rowArray; 118} 119void CBC_CommonBitMatrix::SetRow(int32_t y, CBC_CommonBitArray* row) { 120 int32_t l = y * m_rowSize; 121 for (int32_t i = 0; i < m_rowSize; i++) { 122 m_bits[l] = row->GetBitArray()[i]; 123 l++; 124 } 125} 126void CBC_CommonBitMatrix::SetCol(int32_t y, CBC_CommonBitArray* col) { 127 for (int32_t i = 0; i < col->GetBits().GetSize(); i++) { 128 m_bits[i * m_rowSize + y] = col->GetBitArray()[i]; 129 } 130} 131int32_t CBC_CommonBitMatrix::GetWidth() { 132 return m_width; 133} 134int32_t CBC_CommonBitMatrix::GetHeight() { 135 return m_height; 136} 137int32_t CBC_CommonBitMatrix::GetRowSize() { 138 return m_rowSize; 139} 140int32_t CBC_CommonBitMatrix::GetDimension(int32_t& e) { 141 if (m_width != m_height) { 142 e = BCExceptionCanNotCallGetDimensionOnNonSquareMatrix; 143 return 0; 144 } 145 return m_width; 146} 147